HANNOVER MESSE 2018, 23 - 27 April
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Ritz Instrument Transformers


Logo Ritz Instrument Transformers
Exhibition stand
Hall 12, Stand D54

Company Data


Ritz Instrument Transformers GmbH

Wandsbeker Zollstr. 92-98
22041 Hamburg
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Fax: +49 40 51123 322


Ms. Carolin Klockmann
Marketing Manager
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Type of company

Year founded

No. of employees
1.001-10.000 (Status: 2017)

Annual turnover
between 100M and 1 billion EUR (Status: 2017)

Company profile


RITZ is one of the worlds leading specialists for instrument transformers, cast resin applications, cast resin insulated busbar systems and cast resin insulated power transformers.
The company dates back to 1904. Based in Hamburg, RITZ combines the expertise of Ritz Messwandler Hamburg, Messwandlerbau Bamberg (MWB), Ritz Messwandler Dresden (TuR and Duromer) and Wandler- und Transformatoren-Werk Wirges (WTW).
RITZ boats seven production facilities across Europe, China and the United States of America. Customers include renowned companies from the fields of energy supply and electronics from all corners of the globe.

RITZ has a large portfolio. We develop your standard devices, using your specific wishes to create tailor-made products. We provide small and large quantities.

Give us a challenge, we will give you the solution.

Finding the best solution together with our customers - that is what the RITZ name stands for.

Company website

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Customised Cast Resin Parts

- Development and formulation of cast resin moulding materials for electrical applications in low and medium voltage ranges and for electronics. - Design and production of cast resin mouldings e.g. special bushings, fuse housings more

SIS Cast Resin Bus Bar Systems

The Alternative to Parallel-Connected Cables The RITZ SIS Solid Insulated Bus Bar System especially offers for transmission of higher currents and/or limited space requirements a cost-effective and save alternative to parallel-connected cable systems, metal-enclosed bus bar or bus duct systems. RITZ more

Cast Resin Insulated Power Transformers

up to 40 kV and 25 MVA Glass-fibre reinforced Vacuum Technology (GVT) is used for High Voltage coils and optionally for Low Voltage coils in order to guarantee the highest possible quality and reliability to avoid cracks or voids during manufacturing and service. Applications - Power Distribution - more

Low Voltage Instrument Transformers

We produce Low Voltage Instrument Transformers. up to 1.2 kV Current Transformers for Measuring and Protection Purposes - Wound primary CT - Auxiliary CT - Summation CT - Window type CT - CT for switch fuses - Tube type CT - Window type CT for high currents - Multi-range CT - Split-core types for earth more

Medium Voltage Instrument Transformers

We produce Medium Voltage Instrument Transformers. up to 72,5 kV - Indoor and Outdoor - Metal Clad Design - Metalized Design - Burst Proofed Metering Voltage Transformers for Railway Vehicle - Sensor Typesread more


We produce Electronic Instrument Transformers and Sensors. - Voltage up to 90 kV - Accuracy of 0,2 % - Frequency from 0 to 10 kHz - Current up to 24000 A - Accuracy of 0,01 % - Frequency from 0 to 10 kHz Applications - Power Engineering - Grid Analyse - more

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